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Merck & Co., Inc.

MRK
Exchange
NYSE
Industry
Pharmaceutical Preparations
SEC CIK
0000310158

In the last 90 days, Merck & Co., Inc. insiders filed 0 open-market purchases and 7 sales; 3,855 institutions reported holding it in 13F filings for Q2 2026, worth $254.3B in total; 4 superinvestors hold it, including Harris Associates (Oakmark) and Fairfax Financial.

13F holders, Q3 2021

Institutional positions in Merck & Co., Inc. as of Sep 30, 2021. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
2,658
+15 vs. Q2 2021
Shares held
1.85B
−4.78M (−0.3%) vs. Q2 2021
Total value
$138.8B
−$5.04B (−3.5%) vs. Q2 2021
New holders
116
1,243 more added
Sold out
101
978 more reduced

41 institutions that held it in Q2 2021 haven't filed for Q3 2021 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q2 2021: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting MRK on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ3 2021: 2,658 institutions
Q1 2021: 2,693 institutionsQ2 2021: 2,684 institutionsQ3 2021: 2,658 institutionsQ4 2021: 2,910 institutionsQ1 2022: 2,961 institutionsQ2 2022: 3,019 institutionsQ3 2022: 2,996 institutionsQ4 2022: 3,243 institutionsQ1 2023: 3,187 institutionsQ2 2023: 3,261 institutionsQ3 2023: 3,221 institutionsQ4 2023: 3,443 institutionsQ1 2024: 3,546 institutionsQ2 2024: 3,557 institutionsQ3 2024: 3,501 institutionsQ4 2024: 3,618 institutionsQ1 2025: 3,459 institutionsQ2 2025: 3,337 institutionsQ3 2025: 3,319 institutionsQ4 2025: 3,674 institutionsQ1 2026: 3,812 institutionsQ2 2026: 3,855 institutions
Value heldQ3 2021: $138.8B
Q1 2021: $143.2BQ2 2021: $144.3BQ3 2021: $138.8BQ4 2021: $142.2BQ1 2022: $152.1BQ2 2022: $171.5BQ3 2022: $162.7BQ4 2022: $212.2BQ1 2023: $205.1BQ2 2023: $222.8BQ3 2023: $197.7BQ4 2023: $211.6BQ1 2024: $256.9BQ2 2024: $242.3BQ3 2024: $221.8BQ4 2024: $196.9BQ1 2025: $177.7BQ2 2025: $155.9BQ3 2025: $159.8BQ4 2025: $206.6BQ1 2026: $231.9BQ2 2026: $254.3B
Institutions holding MRK and their total value by quarter
QuarterHoldersValue
Q2 20263,855$254.3B
Q1 20263,812$231.9B
Q4 20253,674$206.6B
Q3 20253,319$159.8B
Q2 20253,337$155.9B
Q1 20253,459$177.7B
Q4 20243,618$196.9B
Q3 20243,501$221.8B
Q2 20243,557$242.3B
Q1 20243,546$256.9B
Q4 20233,443$211.6B
Q3 20233,221$197.7B
Q2 20233,261$222.8B
Q1 20233,187$205.1B
Q4 20223,243$212.2B
Q3 20222,996$162.7B
Q2 20223,019$171.5B
Q1 20222,961$152.1B
Q4 20212,910$142.2B
Q3 20212,658$138.8B
Q2 20212,684$144.3B
Q1 20212,693$143.2B

Institutions, Q3 2021

Shares, value and share of portfolio for each institution holding Merck & Co., Inc.; share changes are against Q2 2021.

Institutions holding MRK in Q3 2021
InstitutionSharesValue% of portfolioChange in sharesAction
Maryland Capital Management92,750$6.97M0.42%−7,687−7.7%Reduced
Hi-Line Capital Management, LLC91,234$6.91M2.47%+2,846+3.2%Added
Cutler Capital Management, LLC91,650$6.88M2.60%+3,175+3.6%Added
Boyd Watterson Asset Management LLC91,540$6.88M2.53%+62,003+209.9%Added
Circle Wealth Management, LLC91,395$6.87M0.99%+90.0%Added
Hamel Associates, Inc.91,252$6.85M2.67%−387−0.4%Reduced
Rafferty Asset Management, LLC91,143$6.85M0.05%+32,475+55.4%Added
ICICI Prudential Asset Management Co Ltd90,606$6.80M1.15%+3,591+4.1%Added
KMG Fiduciary Partners, LLC90,328$6.79M1.15%−4,865−5.1%Reduced
Keystone Financial Planning, Inc.89,982$6.76M2.46%+14,247+18.8%Added
Rodgers Brothers Inc.89,945$6.76M1.35%+1,000+1.1%Added
New England Asset Management Inc89,165$6.70M0.12%+19,800+28.5%Added
First Nebraska Trust Co89,078$6.69M0.88%+2,255+2.6%Added
Diversified Trust Co89,068$6.69M0.24%+3,862+4.5%Added
Shelton Capital Management88,974$6.68M0.26%−6,079−6.4%Reduced
Naples Global Advisors, LLC88,737$6.67M0.88%+3,082+3.6%Added
Salem Capital Management Inc88,671$6.66M3.65%−1,800−2.0%Reduced
Alpine Woods Capital Investors, LLC88,510$6.65M0.71%−2,283−2.5%Reduced
Edge Capital Group, LLC88,487$6.65M0.53%+80,812+1,052.9%Added
Park Avenue Securities LLC88,470$6.64M0.13%+2,257+2.6%Added
HAP Trading, LLC88,372$6.64M0.49%+26,179+42.1%Added
Wedbush Securities Inc88,170$6.62M0.31%+551+0.6%Added
Marshall Wace North America L.P.88,135$6.62M0.03%−158,970−64.3%Reduced
Johnson Investment Counsel Inc87,190$6.61M0.09%−3,603−4.0%Reduced
Carret Asset Management, LLC87,907$6.60M0.79%+259+0.3%Added
Vident Investment Advisory, LLC87,860$6.60M0.20%+14,994+20.6%Added
Tower Research Capital LLC (TRC)87,670$6.58M0.17%−51,822−37.2%Reduced
Clearstead Advisors, LLC87,387$6.56M0.49%+672+0.8%Added
Beese Fulmer Investment Management, Inc.87,192$6.55M0.74%+1,529+1.8%Added
Folger Nolan Fleming Douglas Capital Management, Inc87,197$6.55M0.79%+6,735+8.4%Added
Marco Investment Management LLC86,834$6.52M0.72%+3,365+4.0%Added
Violich Capital Management, Inc.86,711$6.51M1.05%+3,100+3.7%Added
Perigon Wealth Management, LLC86,591$6.50M0.57%−2,415−2.7%Reduced
Avantax Advisory Services, Inc.86,180$6.50M0.11%+6,967+8.8%Added
Amica Mutual Insurance Co86,254$6.48M0.68%−24,744−22.3%Reduced
Cary Street Partners Asset Management LLC85,893$6.45M2.28%−269−0.3%Reduced
Ziegler Capital Management, LLC85,041$6.40M0.23%−37,434−30.6%Reduced
Advisor Partners LLC85,122$6.39M0.43%−5,294−5.9%Reduced
Pura Vida Investments, LLC85,000$6.38M0.48%+85,000New
Security National Bank84,779$6.37M1.60%+5,366+6.8%Added
Argyle Capital Management Inc.84,092$6.32M2.09%−350.0%Reduced
Hennion & Walsh Asset Management, Inc.84,052$6.31M0.33%−10,586−11.2%Reduced
Live Oak Private Wealth LLC83,734$6.29M1.28%+2,617+3.2%Added
Sky Investment Group LLC83,699$6.29M1.40%+45+0.1%Added
WealthBridge Investment Counsel Inc.83,570$6.28M2.82%−225−0.3%Reduced
Inlet Private Wealth, LLC81,164$6.10M1.63%+144+0.2%Added
Providence Capital Advisors, LLC80,819$6.07M1.89%+8,704+12.1%Added
Tompkins Financial Corp80,808$6.07M1.11%+80,808New
Brown Advisory Securities, LLC80,233$6.03M1.78%−20,044−20.0%Reduced
NJ State Employees Deferred Compensation Plan80,252$6.03M0.82%00.0%Unchanged
Canandaigua National Corp79,949$6.00M0.98%+119+0.1%Added
Ashfield Capital Partners, LLC79,633$5.98M0.43%−616−0.8%Reduced
Corbenic Partners LLC78,731$5.96M1.45%+5,464+7.5%Added
Boit C F David73,199$5.96M4.09%00.0%Unchanged
Edgemoor Investment Advisors, Inc.78,631$5.91M0.67%−32,039−29.0%Reduced
Evergreen Capital Management LLC78,440$5.89M0.27%+2,926+3.9%Added
RPG Investment Advisory, LLC78,321$5.88M0.97%+658+0.8%Added
Principle Wealth Partners LLC78,291$5.88M0.68%−4,460−5.4%Reduced
Equitable Trust Co78,239$5.88M0.38%−476−0.6%Reduced
tru Independence LLC77,752$5.84M1.63%+362+0.5%Added
Cigna Investments Inc77,580$5.83M0.44%−1,444−1.8%Reduced
Beech Hill Advisors, Inc.77,353$5.81M2.41%+2,405+3.2%Added
Augustine Asset Management Inc77,306$5.81M3.09%−1,417−1.8%Reduced
Opus Investment Management Inc77,100$5.79M0.89%00.0%Unchanged
Snowden Capital Advisors LLC76,943$5.78M0.29%+5,625+7.9%Added
Guyasuta Investment Advisors Inc76,874$5.77M0.41%+1,369+1.8%Added
Sigma Planning Corp76,809$5.77M0.18%+561+0.7%Added
Adalta Capital Management LLC76,110$5.77M3.19%−40−0.1%Reduced
Buffington Mohr McNeal76,311$5.73M1.10%+2,577+3.5%Added
Trustmark National Bank Trust Department76,224$5.73M0.46%+32,059+72.6%Added
Northeast Financial Consultants Inc76,190$5.72M0.38%−39,800−34.3%Reduced
Buckingham Strategic Wealth, LLC75,985$5.71M0.12%+6,635+9.6%Added
Schonfeld Strategic Advisors LLC75,661$5.68M0.06%+75,661New
Northwest Bancshares, Inc.75,640$5.68M1.29%+3,661+5.1%Added
Sectoral Asset Management Inc75,250$5.65M0.47%00.0%Unchanged
Ellsworth Advisors, LLC74,927$5.63M2.57%+52,076+227.9%Added
GWM Advisors LLC74,488$5.59M0.14%−21,412−22.3%Reduced
Lincoln National Corp73,978$5.56M0.12%+5,941+8.7%Added
FLC Capital Advisors73,573$5.53M1.63%+2,040+2.9%Added
Trust Co of Virginia73,547$5.52M0.61%+272+0.4%Added
Rathbone Brothers plc72,950$5.48M0.06%−12,047−14.2%Reduced
Bright Rock Capital Management, LLC72,000$5.41M1.35%00.0%Unchanged
XML Financial, LLC71,940$5.40M0.72%+57,907+412.6%Added
Mutual Advisors, LLC71,881$5.40M0.32%+6,263+9.5%Added
Gibraltar Capital Management, Inc.71,843$5.40M2.74%+6,022+9.1%Added
Eliot Finkel Investment Counsel, LLC71,690$5.38M3.45%+560+0.8%Added
One Capital Management, LLC71,614$5.38M0.44%+1,079+1.5%Added
IBM Retirement Fund71,537$5.37M0.42%+150+0.2%Added
Icon Wealth Partners, LLC71,493$5.37M0.57%−926−1.3%Reduced
Marble Harbor Investment Counsel, LLC71,307$5.36M0.72%+265+0.4%Added
PKO Investment Management Joint-Stock Co71,074$5.34M0.64%+22,692+46.9%Added
Founders Capital Management, LLC70,606$5.30M1.34%−1,922−2.7%Reduced
Venture Visionary Partners LLC70,180$5.27M0.37%+4,976+7.6%Added
Courier Capital LLC69,545$5.22M0.50%+3,174+4.8%Added
Bonness Enterprises Inc69,500$5.22M2.66%00.0%Unchanged
Gluskin Sheff & Assoc Inc69,172$5.20M0.22%+873+1.3%Added
Beach Investment Counsel Inc68,994$5.18M0.49%00.0%Unchanged
Rothschild Investment Corp68,831$5.17M0.43%−6,595−8.7%Reduced
Granite Investment Advisors, LLC68,674$5.16M0.84%−1,869−2.6%Reduced
Stoneridge Investment Partners LLC68,406$5.14M2.57%+68,406New